Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/18/2024   20:16:23   (   0.01,-104.70) (   0.43,-102.75)  222.16                80
 05/20/2024   08:38:09   (  -0.01,-104.71) (   0.71,-108.02)  375.96                80
 05/21/2024   08:16:43   (  -0.01,-104.71) (  -0.29,-103.47)  141.36                80
 05/22/2024   20:38:37   (   0.02,-104.71) (  -0.87,-108.77)  462.41                80
 05/23/2024   20:22:31   (   0.02,-104.71) (   0.13,-104.22)   54.79                80
 05/26/2024   08:22:49   (  -0.03,-104.71) (   0.04,-104.94)   26.79                80
 05/27/2024   08:06:43   (  -0.02,-104.70) (  -0.97,-100.40)  490.33                80
 05/28/2024   20:25:56   (   0.02,-104.69) (  -0.23,-105.68)  113.85                80
 05/29/2024   20:09:50   (   0.02,-104.69) (   0.79,-101.14)  403.52                80
 05/31/2024   08:28:55   (  -0.02,-104.69) (   0.36,-106.40)  194.73                80